Can-heading mechanism



(No Model.) 2 Sheets-Sheet 1.

B. 3.. ANGELL. CAN HEADING MECHANISM.

No. 410,341. Patented Sept. 3, 1889.

UN TED STATES PATENT OFFICE.

EDWIN E. ANGELL, OF MALDEN, MASSACHUSETTS CAN-HEADING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 410,341, dated September 3, 1889.

Application filed January 14, 1889. Serial No. 296,245. (No model.)

To all whom, it may concern:

Be it known that I, EDWIN E. ANGEL-L, of Malden, in the county of Middlesexand State of Massachusetts, have invented certain new and useful Improvements in Jaw-Movements for Can-Heading Mechanisms, of which the following is a specification.

It is the object of my invention to provide a jaw-movement for can-heading mechanisms which shall be very simple in construction and thoroughly eflicient in operation.

To this end my invention consists of certain combinations of parts, as hereinafter indicated by the claims, whereby jaws supported in guideways may be moved radially in and out to clamp or release a can-head by a single movement of a cam-ring.

Of the drawings hereto annexed and form ing a part of this specification, Figure 1 is a top plan view of my improved j aw-movement for can-heading mechanisms. Fig. 2 is a side or end elevation of the same. Fig. 3 is a central sectional view taken on the line 3 3, Fig. 1. Fig. 4 is a plan view of the head proper with the jaws and their operating devices removed. Fig. 5 is a sectional View taken on the line 5 5 of Fig. 2. Fig. 6 is a sectional View taken on the line 6 6 of Fig. 2. a perspective view of one of the movable jaws.

The same letters of reference designate the same parts or features wherever employed.

In the manufacture of sheet-metal cans, as is well understood by those skilled in the'art, it is common to form the body as a cylinder, and stamp up the heads with the requisite lips or flanges, and these parts thus separately formed are connected byintroducing the end of the can-body into the flanged head or forcing the lip on the latter over the end of the body, it being the oflice of the jaws to embrace the' end of the can-body and guide it so that it will pass within the circle formed by the lip, and at the same time guard and protect the latter.

In the drawings, a designates the head provided with a circular recess 1), in which the plunger for acting against the head of the can may operate, 0 designating a hole made through the head and communicating with the recess 1) for the reception and operation of the plunger-rod.

Fig. 7 is d is an offset formed in the outer edge of the recess 1) for the reception of the can-head, which may be slid into place through the way 6, formed by cutting away a portion of the outer end of the head, as shown most clearly in Figs. 2 and 4.

f designates the jaws for embracing the end of the can-body, which jaws are here shown as consisting of segments f of a circle, provided. with shanks f which shanks are adapted to be moved in ways formed in wings g, projecting from the head a.

h designates studs connected with the shanks of the jaws, which studs extend through slots formed in the wings g of the head a, and through cam-slots 11, formed in the wings j of the cam-ring j, which latter device is adapted to turn on the head a, the construction and arrangement being such that when the camring is turned in one direction the cam-slots.

2' will operate on the studs 71., so as to move the jaws inward ortoward each other, and when said cam-ring is moved in the opposite direction the jaws will be moved outward or away from each other.

7t designates a ring or collar arranged on the head a below the cam-ring, to support the latter in position, said ring being provided with slotted wings or arms Z I, through which, or through sliding boxes arranged in which,

the ends of the studs 71. extend, which latter contrivance serves as a means for guiding and steadying the studs as they are moved by the cam-ring to move the jaws.

Any suitable means may be provided for moving the cam-ring j.

The studs h may (though they need not necessarily) be adj ustably connected with the shanks f of the jaws, the means here shown for accomplishing this end being rods m, having a "screw-threaded connection with the shanks f two of such rods engaging each stud on opposite sides of the same, the upper end of the stud being connected with block 7%, adapted to slide in agroove f Fig. 7, formed in the shank f, the stud below said block extending through a slot f in said shanks, so as to permit of adjustment by means of the screw-rods m.

0 0 designate screws tapped into the wings g of the head and bearing against the gibs p, l

for the purpose of adjusting the jaws laterally and taking up the wear in their guideways.

I do not limit myself to the use of two movable jaws, as it is obvious that three, four, or more such jaws may readilybe employed without departing from the nature or spirit of the invent-ion.

Having thus described my invention, I declare that what I claim is 1. A jaw-movement for can-heading mechanisms, consisting of the combination, with a head a, having a circular recess b, with an enlargement or offset 61 in its upper or outer edge, said head having also the wings g, provided with guideways, of the sliding jaws movable in said guideways and provided with studs or bolts, said jaws extending above or outside of said offset, and a cam-ring surrounding said head and having wings provided with cam-slots entered by said studs or bolts, substantially as described.

2. A jaw-movement for can-heading mechanisms, consisting of the combination, with a head a, having a circular recess 1), with an enlargement or offset d at its upper or outer edge, said head having also the wings g, provided with guideways, of the sliding jaws movable in said guideways and provided with studs or bolts, said jaws extending above or outside of saidoffset, the ring or collar 70, rigid with said head and having wings provided with guiding-slots receiving said stud or bolts, and a cam-ring j, arranged between the wings of said head and the said collar and having wings provided with cam-slots, through which the said studs or bolts pass, substantially as described.

3. The combination, with the head a, having the circular recess b, provided with the offset d, and having also the wings provided with guideways, of the sliding jawsmovable in said guideways and extending over said offset, the studs or bolts h, adjustably secured to the shanks of said jaws, and the cam-ring j, having wings provided with cam-slots receiving said bolts, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 7th day of January, A. D. 1889.

EDWVIN E. ANGELL,

Witnesses:

ARTHUR W. CROSSLEY, W. RAMsAv. 

